Percarbonate activation catalyzed by nanoblocks of basic copper molybdate for antibiotics degradation: High performance, degradation pathways and mechanism  

作　　者：Xiaotao Jin Yanlan Wang Yingping Huang Di Huang Xiang Liu 

机构地区：[1]Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region of Ministry of Education,College of Materials and Chemical Engineering,China Three Gorges University,Yichang 443002,China [2]Department of chemistry and chemical engineering,Liaocheng University,Liaocheng 252059,China

出　　处：《Chinese Chemical Letters》2024年第10期375-378,共4页中国化学快报（英文版）

基　　金：Financial support from the NSFC(Nos.21972073,22136003,21805166 and 22206188);the 111 Project of China(No.D20015)and Natural Science Foundation of Hubei Province,China(No.2022CFB275)is gratefully acknowledged。

摘　　要：Sodium percarbonate(Na_(2)CO_(3)·1.5H_(2)O_(2),SPC)has been extensively employed as a solid substitute of H_(2)O_(2)for Fenton process in water treatment,because of its high stability during the production,transport,storage and usage.In addition,SPC can be applied in a wider range of work pH,it is also applied as a buffer in Fenton reaction for preventing a drop in pH.Herein,we have synthesized basic copper molybdate(BCM)nanoblocks with the molecular formula of Cu_(3)(MoO_(4))_(2)(OH)_(2)as an efficient and heterogeneous catalyst for antibiotics degradation via percarbonate activation.First,fully physical characterizations confirmed BCM nanocomposite exhibited a structure of nanoblocks.We also found that BCM/SPC system could work in a much wider pH range,compared with H_(2)O_(2).Then,BCM/SPC system presented a good anti-interference ability for natural organic matter in OTC degradation.EPR results and Quenching tests confirmed that the co-presence of·CO_(3)-,·O_(2)-,1O_(2)and·OH in BCM/SPC system.

关 键 词：Sodium percarbonate Fenton process Water treatment Copper molybdate Nanoblocks 

分 类 号：X703[环境科学与工程—环境工程] O643.36[理学—物理化学]